（ ） born in Chicago, the author is most famous for his stories about New York City.

Harmonious marriage, however, does not necessarily （ ） much sharing of interests and responsibilities.

（ ） relatively costly, the engine is highly efficient and needs servicing infrequently.

The two companies decided to （ ） on a project concerning animal cloning.

He was never （ ） of experimenting with different ways of planting his crops.

Can you_____the difference_____the two phrases?

He spoke so quickly that I didn’t_____what he said.

_____ finished his work, he had to stay at home on the weekend.

I love thinking of new designs. It keeps my mind clear and active and fills my retired life with （ ）.

When he really does something wrong, he is willing to （ ）.

We consider_____the instrument be adjusted each time it is use

By the time you arrive in London, we （ ） in Europe for two weeks.